Table 1. Portland cement chemical composition.
| Oxide | % Mass | Oxide | % Mass |
|---|---|---|---|
| CaO | 62.5 | Mn2O3 | 1.5 |
| SiO2 | 21.5 | K2O | 1.5 |
| Al2O3 | 4.5 | SO3 | 1.0 |
| MgO | 2.5 | Na2O | 0.7 |
| TiO2 | 2.0 | P2O5 | 0.5 |
| Fe2O3 | 1.8 | ||
| LOI | 2.5 |
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.